///*******************************************************************************
// * Copyright (c) 2000, 2016 IBM Corporation and others.
// *
// * All rights reserved. This program and the accompanying materials
// * are made available under the terms of the Eclipse Public License v1.0
// * which accompanies this distribution, and is available at
// * http://www.eclipse.org/legal/epl-v10.html
// *******************************************************************************/
//
//package org.lttng.scope.lami.ui.handler;
//
//import org.eclipse.jdt.annotation.NonNullByDefault;
//import org.eclipse.jface.dialogs.Dialog;
//import org.eclipse.jface.dialogs.IDialogConstants;
//import org.eclipse.jface.dialogs.IInputValidator;
//import org.eclipse.jface.dialogs.InputDialog;
//import org.eclipse.jface.resource.StringConverter;
//import org.eclipse.swt.SWT;
//import org.eclipse.swt.graphics.Color;
//import org.eclipse.swt.layout.GridData;
//import org.eclipse.swt.widgets.Button;
//import org.eclipse.swt.widgets.Composite;
//import org.eclipse.swt.widgets.Control;
//import org.eclipse.swt.widgets.Display;
//import org.eclipse.swt.widgets.Label;
//import org.eclipse.swt.widgets.Shell;
//import org.eclipse.swt.widgets.Text;
//
///**
// * Adaptation of {@link InputDialog}, to show the command in a grayed out,
// * read-only input field, and a editable input field for the user to add extra
// * parameters.
// *
// * @author Alexandre Montplaisir
// */
//@NonNullByDefault({})
//class ParameterDialog extends Dialog {
//
//    private static final Color GRAY_COLOR = Display.getCurrent().getSystemColor(SWT.COLOR_DARK_GRAY);
//
//    private String fTitle;
//    private String fMessage;
//    private String fValue = "";//$NON-NLS-1$
//    private IInputValidator fValidator;
//    private Button fOkButton;
//    private Text fText;
//    private Text fErrorMessageText;
//    private String fErrorMessage;
//
//    private Text fBaseCommandText;
//    private final String fBaseCommand;
//
//    public ParameterDialog(Shell parentShell,
//            String dialogTitle,
//            String dialogMessage,
//            String baseCommand,
//            IInputValidator validator) {
//        super(parentShell);
//        fTitle = dialogTitle;
//        fMessage = dialogMessage;
//        fValue = "";//$NON-NLS-1$
//        fValidator = validator;
//        fBaseCommand = baseCommand;
//    }
//
//    @Override
//    protected void buttonPressed(int buttonId) {
//        if (buttonId == IDialogConstants.OK_ID) {
//            fValue = fText.getText();
//        } else {
//            fValue = null;
//        }
//        super.buttonPressed(buttonId);
//    }
//
//    @Override
//    protected void configureShell(Shell shell) {
//        super.configureShell(shell);
//        if (fTitle != null) {
//            shell.setText(fTitle);
//        }
//    }
//
//    @Override
//    protected void createButtonsForButtonBar(Composite parent) {
//        fOkButton = createButton(parent, IDialogConstants.OK_ID,
//                IDialogConstants.OK_LABEL, true);
//        createButton(parent, IDialogConstants.CANCEL_ID,
//                IDialogConstants.CANCEL_LABEL, false);
//        fText.setFocus();
//        if (fValue != null) {
//            fText.setText(fValue);
//            fText.selectAll();
//        }
//    }
//
//    @Override
//    protected Control createDialogArea(Composite parent) {
//        // create composite
//        Composite composite = (Composite) super.createDialogArea(parent);
//
//        Label label = new Label(composite, SWT.WRAP);
//        label.setText(Messages.ParameterDialog_BaseCommand + ':');
//
//        fBaseCommandText = new Text(composite, getInputTextStyle() | SWT.READ_ONLY);
//        fBaseCommandText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL
//                | GridData.HORIZONTAL_ALIGN_FILL));
//        fBaseCommandText.setText(fBaseCommand);
//        fBaseCommandText.setForeground(GRAY_COLOR);
//
//        // create message
//        if (fMessage != null) {
//            label = new Label(composite, SWT.WRAP);
//            label.setText(fMessage);
//            GridData data = new GridData(GridData.GRAB_HORIZONTAL
//                    | GridData.GRAB_VERTICAL | GridData.HORIZONTAL_ALIGN_FILL
//                    | GridData.VERTICAL_ALIGN_CENTER);
//            data.widthHint = convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH);
//            label.setLayoutData(data);
//            label.setFont(parent.getFont());
//        }
//
//
//
//        fText = new Text(composite, getInputTextStyle());
//        fText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL
//                | GridData.HORIZONTAL_ALIGN_FILL));
//        fText.addModifyListener(e -> validateInput());
//        fErrorMessageText = new Text(composite, SWT.READ_ONLY | SWT.WRAP);
//        fErrorMessageText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL
//                | GridData.HORIZONTAL_ALIGN_FILL));
//        fErrorMessageText.setBackground(fErrorMessageText.getDisplay()
//                .getSystemColor(SWT.COLOR_WIDGET_BACKGROUND));
//        setErrorMessage(fErrorMessage);
//
//        applyDialogFont(composite);
//        return composite;
//    }
//
//    /**
//     * Returns the ok button.
//     *
//     * @return the ok button
//     */
//    protected Button getOkButton() {
//        return fOkButton;
//    }
//
//    /**
//     * Returns the string typed into this input dialog.
//     *
//     * @return the input string
//     */
//    public String getValue() {
//        return fValue;
//    }
//
//    /**
//     * Validates the input.
//     * <p>
//     * The default implementation of this framework method delegates the request
//     * to the supplied input validator object; if it finds the input invalid,
//     * the error message is displayed in the dialog's message line. This hook
//     * method is called whenever the text changes in the input field.
//     * </p>
//     */
//    protected void validateInput() {
//        String errMsg = null;
//        if (fValidator != null) {
//            errMsg = fValidator.isValid(fText.getText());
//        }
//        setErrorMessage(errMsg);
//    }
//
//    /**
//     * Sets or clears the error message.
//     * If not <code>null</code>, the OK button is disabled.
//     *
//     * @param errorMessage
//     *            the error message, or <code>null</code> to clear
//     */
//    private void setErrorMessage(String errorMessage) {
//        this.fErrorMessage = errorMessage;
//        if (fErrorMessageText != null && !fErrorMessageText.isDisposed()) {
//            fErrorMessageText.setText(errorMessage == null ? " \n " : errorMessage); //$NON-NLS-1$
//            boolean hasError = errorMessage != null && (StringConverter.removeWhiteSpaces(errorMessage)).length() > 0;
//            fErrorMessageText.setEnabled(hasError);
//            fErrorMessageText.setVisible(hasError);
//            fErrorMessageText.getParent().update();
//            Control button = getButton(IDialogConstants.OK_ID);
//            if (button != null) {
//                button.setEnabled(errorMessage == null);
//            }
//        }
//    }
//
//    /**
//     * Returns the style bits that should be used for the input text field.
//     * Defaults to a single line entry. Subclasses may override.
//     *
//     * @return the integer style bits that should be used when creating the
//     *         input text
//     */
//    protected int getInputTextStyle() {
//        return SWT.SINGLE | SWT.BORDER;
//    }
//}
